Originally Posted by BusterBoyBenz

I don't know of every precise difference but I suspect substituting a non-original turbo for a turbo that was designed for optimal performance as part of a highly engineered drivability package that these cars are would perform at non-optimal levels even if it could be physically accomplished.



As far as being detrimental to the engine, possibly not but functionally probably so.



I have no reason to argue I was merely pointing out the obvious differences to anyone who was thinking such a move was a direct swap.



In addition the OM 603 could have come equipped with a Garret turbo but might have been originally equipped with a KKK turbo in the alternative. That might also complicate any installation.